For a binomial distribution, the mean is 6 and the standard deviation is 
. Find the probability of getting 5 successes.
Mean = np = 6
Variance = npq = 2
⇒ q = 
⇒ p = 1 - 
= 
⇒ n = 9
The probability of getting 5 successes,
9C5(
)5(
)4
1
For a binomial distribution, the mean is 6 and the standard deviation is . Find the probability of getting 5 successes.
Mean = np = 6
Variance = npq = 2
⇒ q =
⇒ p = 1 - =
⇒ n = 9
The probability of getting 5 successes,
9C5()5()4